In a recent article in the Review of International Studies, Kai Alderson subjected the concept of state socialisation to considerable scrutiny. This kind of conceptual clarification is fundamental to both theory building and empirical work in the study of international relations. Alderson should be commended for his work on the concept, since there are only a handful of previous studies that explicitly explore state socialisation in any detail. However, his attempt to produce a ‘consensus definition’ of the concept to bring clarity to an emerging research programme has left me with more questions than answers. This essay is designed to raise questions about Alderson's conceptualisation of state socialisation based on a comparison with the literature on socialisation from other disciplines. The overarching goal is to stimulate healthy debate about a concept that should be central to our understanding of the social aspects of international politics.